scholarly journals Changes in bowel sounds of inpatients undergoing general anesthesia

2020 ◽  
Author(s):  
Guojing Wang ◽  
Mingjun Wang ◽  
Hongyun Liu ◽  
Suping Zhao ◽  
Lu Liu ◽  
...  

Abstract Background: General anesthesia can affect intestinal function, but there is no objective, practical and effective indicator to evaluate the inhibition and recovery of intestinal function. The main objectives of this study were to assess whether bowel sounds (BSs) changed before, immediately after and 3 hours after general anesthesia, and whether these changes in BSs are an effective indicator of intestinal function and an accurate guide for post-operative feeding. Methods: We randomly selected 26 inpatients and collected three sets of 5-minute continuous BS data before the operation (Pre-op), immediately after the operation (Pro-op) and three hours after the operation (3h-Pro-op) for each patient. Then the linear and nonlinear characteristic values (CVs) of each effective bowel sound were extracted and paired t-tests and rank-sum tests were used to evaluate the changes in the BSs. Results: The differences in CVs, between Pre-op and Pro-op, as well as between Pro-op and 3h-Pro-op, were statistically significant (p <0.05). However, there is no statistically significant differences between all the CVs between Pre-op and 3h-Pro-op (p >0.05). Conclusion: BSs changes before and after general anesthesia. Furthermore, the BSs are weakened due to general anesthesia and recover to the pre-op state three hours later. Therefore, the BSs can be an indicator of intestinal function under general anesthesia, so as to provide guidance for postoperative feeding, which is of considerable clinical significance.

2020 ◽  
Author(s):  
Guojing Wang ◽  
Mingjun Wang ◽  
Hongyun Liu ◽  
Suping Zhao ◽  
Lu Liu ◽  
...  

Abstract Background: General anesthesia can affect intestinal function, but there is no objective, practical and effective indicator to evaluate the inhibition and recovery of intestinal function. The main objectives of this study were to assess whether bowel sounds (BSs) changed before, immediately after and 3 hours after general anesthesia, and whether these changes in BSs are an effective indicator of intestinal function and an accurate guide for post-operative feeding. Methods: We randomly selected 26 inpatients and collected three sets of 5-minute continuous BS data before the operation (Pre-op), immediately after the operation (Pro-op) and three hours after the operation (3h-Pro-op) for each patient. Then the linear and nonlinear characteristic values (CVs) of each effective bowel sound were extracted and paired t-tests and rank-sum tests were used to evaluate the changes in the BSs. Results: The differences in CVs, between Pre-op and Pro-op, as well as between Pro-op and 3h-Pro-op, were statistically significant (p <0.05). However, there is no statistically significant differences between all the CVs between Pre-op and 3h-Pro-op (p >0.05). Conclusion: BSs changes before and after general anesthesia. Furthermore, the BSs are weakened due to general anesthesia and recover to the pre-op state three hours later. Therefore, the BSs can be an indicator of intestinal function under general anesthesia, so as to provide guidance for postoperative feeding, which is of considerable clinical significance.


2020 ◽  
Author(s):  
Guojing Wang ◽  
Mingjun Wang ◽  
Hongyun Liu ◽  
Suping Zhao ◽  
Lu Liu ◽  
...  

Abstract Background: General anesthesia can affect intestinal function, but there is no objective, practical and effective indicator to evaluate the inhibition and recovery of intestinal function. The main objectives of this study were to assess whether bowel sounds (BSs) changed before, immediately after and 3 hours after general anesthesia, and whether these changes in BSs are an effective indicator of intestinal function and an accurate guide for post-operative feeding. Methods: We randomly selected 26 inpatients and collected three sets of 5-minute continuous BS data before the operation (Pre-op), immediately after the operation (Pro-op) and three hours after the operation (3h-Pro-op) for each patient. Then the linear and nonlinear characteristic values (CVs) of each EBS were extracted and paired t -tests and rank-sum tests were used to evaluate the changes in the BSs. Results: The differences in CVs, between Pre-op and Pro-op, as well as between Pro-op and 3h-Pro-op, were statistically significant ( p <0.05). However, there is no statistically significant differences between all the CVs between Pre-op and 3h-Pro-op ( p >0.05). Conclusion: BSs changes before and after general anesthesia. Furthermore, the BSs are weakened due to general anesthesia and recover to the pre-op state three hours later. Therefore, the BSs can be an indicator of intestinal function under general anesthesia, so as to provide guidance for postoperative feeding , which is of considerable clinical significance.


2020 ◽  
Author(s):  
Guojing Wang ◽  
Mingjun Wang ◽  
Hongyun Liu ◽  
Suping Zhao ◽  
Lu Liu ◽  
...  

Abstract Background: General anesthesia can affect intestinal function, but there is no objective and effective indicator to evaluate the inhibition and recovery of intestinal function. The main objective of this study is to assess whether bowel sounds (BSs) change before and after general anesthesia, then it can be explained that the BS can be an effective indicator of intestinal function. Methods: We randomly selected 26 inpatients and collected three sets of 5-minute continuous BSs before operation (Pre-op), after operation (Pro-op) and three hours after operation(3h-Pro-op) separately for each patient. The data were de-noised with adaptive filtering and wavelet threshold denoising, and processed with fractal dimension to identify the effective bowel sounds (EBSs). Then the linear and nonlinear characteristic values (CVs) of each EBS were extracted and paired t -test and rank-sum test were used to evaluate the changes of the BSs after general anesthesia. Results: For the difference between Pre-op and Pro-op, as well as between Pro-op and 3h-Pro-op, there are statistical differences ( p <0.05). Specifically, the linear CVs that can reflect the occurrence frequency, overall energy and overall duration of EBSs and the nonlinear CVs that can reflect the dispersion degree of stability and complexity of EBSs were statistically significant. However, there is no statistical difference in the CVs reflecting the energy and duration, as well as the stability and complexity of locally EBSs ( p >0.05). Also, there is no statistically significant difference between all the characteristic values between Pre-op and 3h-Pro-op ( p >0.05). Conclusion: The BSs change after general anesthesia. Furthermore, the BSs are weakened after general anesthesia and recovered to the state before general anesthesia three hours later. Therefore, the BS can be an indicator of intestinal function under general anesthesia, so as to provide guidance for postoperative feeding , which is of great clinical significance.


1978 ◽  
Vol 1 (4) ◽  
pp. 401-405
Author(s):  
Richard Bellman

The purpose of this paper is to derive a nonlinear partial differential equation for whichλgiven by (1.3), is one value of the solution. In Section 2, we derive this equation using a straightforward dynamic programming approach. In Section 3, we discuss some computational aspects of derermining the solution of this equation. In Section 4, we show that the same method may be applied to the nonlinear characteristic value problem. In Section 5, we discuss how the method may by applied to find the higher characteristic values. In Section 5, we discuss how the same method may be applied to some matrix problems. Finally, in Section 7, we discuss selective computation.


2021 ◽  
Vol 15 (1) ◽  
pp. 48-55
Author(s):  
Djunizar Djamaludin ◽  
Eka Yudha Chrisanto

Xylitol gum chewing to achieve early postoperative restoration of bowel motility after surgery under general anesthesiaBackground: The problem that is often encountered in the use of general anesthesia in major surgery is the Post-Operative Ileus (POI). POI is a temporary loss of gastrointestinal propulsion activity characterized by no sounding of bowel sounds and abdominal discomfort and distension. Providing nutrition oral or enteral  when bowel sounds begin to sound has a weakness where it was reported that in this intervention the incidence of bloating, nausea and vomiting was mostly experienced by patients who were intolerant of the presence of food in their stomach.Purpose: Knowing the effect of Xylitol gum chewing to achieve early postoperative restoration of bowel motility after surgery under general anesthesiaMethod: A quasi-experimental method with pre-test and post-test in two groups of 20 patients as participants at A. Dadi Tjokro Dipo Hospital Bandar Lampung City recruited and taken by purposive sampling technique, 10 participants as intervention group (treat by chewing xylitol gum) and other of 10 participants as control group.Results: Finding that by a treat of Xylitol gum chewing in postoperative restoration of bowel motility after surgery under general anesthesia took after 2.3 hours while the patients who did not chew xylitol gum occurred 6.8 hours. T-Test showed that p-value was 0.00 that indicated the p-value < 0.05.Conclusion: There was a difference in the occurring time of the intestine motility between control and experiment groups. It is gained that difference is 4.39 hours with p-value = 0.00 which indicated p < 0.05, that there was an effect of chewing gum containing xylitol on the occurrence of post-operative intestine motility after general anesthesia surgery at A Dadi Tjokor Dipo Hospital of Bandar Lampung City. The present study suggests chewing gum is an alternative method to stimulate intestine motility for early post-operation feeding as a low-cost, safe, and tolerable treatment when without contra indication.Keywords:  Xylitol gum chewing; Postoperative restoration; Bowel motility; Surgery; General anesthesiaPendahuluan: Masalah yang sering dijumpai dalam penggunaan general anestesi pada pembedahan mayor yaitu Post-Operative Ileus (POI). POI adalah hilangnya aktivitas daya dorong saluran cerna untuk sementara yang ditandai dengan tidak terdengarnya bising usus dan rasa tidak nyaman serta distensi abdomen. Memberikan nutrisi secara oral maupun enteral pada saat bising usus mulai terdengar merupakan memiliki kelemahan dimana dilaporkan bahwa pada intervensi ini kejadian kembung, mual dan muntah paling banyak dialami oleh pasien yang tidak toleran terhadap adanya makanan dalam lambungnyaTujuan: Diketahuinya pengaruh mengunyah permen yang mengandung xylitol terhadap timbulnya motilitas usus pada pasien pasca operasi dengan general anestesi.Metode: Penelitian eksperimen semu dengan pre-test dan post-test group. Jumlah pasien yang akan menjalani operasi elektif dengan menggunakan anestesi umum sebanyak 20 pasien di RSUD A. Dadi Tjokro Dipo Kota Bandar Lampung. Sampel diambil dengan teknik purposive sampling, 10 pasien pasca operasi mengunyah permen karet xylitol dan 10 pasien pasca operasi tidak mengunyah permen karet xylitol.Hasil: Didapatkan motilitas usus timbul 2,3 jam setelah mengunyah permen karet dan 6,8 jam bila tidak mengunyah. Hasil uji t-test  didapatkan bahwa p value=0,00 yang berarti nilai p<0,05.Simpulan: Terdapat perbedaan waktu timbulnya motilitas usus pada kelompok kontrol dan kelompok eskperimen sebesar 4,39 jam dan didapatkan nilai p=0,00 yang berarti nilai p<0,05 sehingga Ho ditolak. Oleh karena itu dapat disimpulkan bahwa ada pengaruh pemberian permen karet yang mengandung xylitol terhadap timbulnya motilitas usus pasca operasi dengan general anestesi di RSUD A. Dadi Tjokro Dipo Kota Bandar Lampung. Penelitian ini menunjukkan bahwa mengunyah permen karet adalah metode alternatif untuk merangsang motilitas usus untuk pemberian makan pasca operasi awal sebagai pengobatan yang berbiaya rendah, aman, dan dapat ditoleransi..


Medicine ◽  
2018 ◽  
Vol 97 (35) ◽  
pp. e12014 ◽  
Author(s):  
Sehoon Park ◽  
Soojin Lee ◽  
Anna Lee ◽  
Jin Hyuk Paek ◽  
Ho Jun Chin ◽  
...  

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Guojing Wang ◽  
Mingjun Wang ◽  
Hongyun Liu ◽  
Suping Zhao ◽  
Lu Liu ◽  
...  

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